Year 3

Year 3

# To identify perpendicular lines

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## Lesson details

### Key learning points

1. In this lesson, we will build on our knowledge of angles, in particular right angles, and learn to identify perpendicular lines. We will look at these individually and within 2D shapes, as well as having a chance to find these ourselves.

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## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
An acute angle is one which is...
bigger than a right angle
Correct answer: smaller than a right angle
Q2.
If an angle is 1 quarter turn, it must be a
an acute angle
an obtuse angle
Correct answer: right angle
Q3.
How many internal angles does a square have?
1
2
8
Q4.
True or false, if a shape has 4 right angles, it must be a square?
True
Q5.
Angles measure...
distance
height
temperature
Correct answer: the space between 2 intersecting lines

## Exit quiz

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### 4 Questions

Q1.
Perpendicular lines are...
any lines in 2-D shapes
Correct answer: lines that do (or would) meet at a right angle
lines which meet at an acute angle
Q2.
Squares (like the one below) contain 4 pairs of perpendicular lines. True or false?
False